01 -
Heat 1 tablespoon olive oil in a large skillet over medium-high heat. When the oil is hot, add sliced yellow onion, red bell pepper, and green bell pepper. Season generously with kosher salt and freshly ground black pepper. Cook, stirring occasionally, until the vegetables are deeply softened and beginning to caramelize, approximately 7 to 8 minutes. Transfer vegetables and any juices to a plate.
02 -
Add remaining tablespoon olive oil to the same skillet over medium-high heat. Add sliced chicken breasts in a single layer. Season with Italian seasoning, smoked paprika, kosher salt, and black pepper. Allow to cook undisturbed for 2 to 3 minutes until well seared on the bottom.
03 -
Stir chicken and continue to cook until no longer pink and thoroughly cooked, about 4 to 5 minutes. Ensure internal temperature reaches 74°C using a meat thermometer.
04 -
Return reserved peppers, onions, and juices to the skillet with the chicken. Stir to combine evenly. Spread mixture into an even layer and scatter shredded provolone cheese evenly over the top.
05 -
Cover skillet with a lid or aluminium foil and reduce heat to medium-low. Let sit for 2 to 3 minutes until the cheese is melted and bubbling. Remove from heat and serve immediately.